This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 51 |
| 3 | 477 |
| 4 | 651 |
| 5 | 925 |
| 6 | 2625 |
| 7 | 5551 |
| 8 | 6501 |
| 9 | 9801 |
| 10 | 17767 |
| 11 | 20475 |
| 12 | 25285 |
| 13 | 26467 |
| 14 | 29751 |
| 15 | 39285 |
| 16 | 45327 |
| 17 | 67947 |
| 18 | 75825 |
| 19 | 84135 |
| 20 | 84847 |
| 21 | 95887 |
| 22 | 99717 |
| 23 | 102051 |
| 24 | 114955 |
| 25 | 135751 |
| 26 | 151527 |
| 27 | 154401 |
| 28 | 178365 |
| 29 | 245835 |
| 30 | 261877 |
| 31 | 272001 |
| 32 | 275847 |
| 33 | 287547 |
| 34 | 292825 |
| 35 | 307587 |